I don't think an insole will help with the gapping on the sides, so I probably wouldn't get them if they're going to be looser. That's if the gapping bothers you. If you don't mind, then I say you only live once. Go for it! They're pretty.
Thanks dimple2xs , I might wait for the next season to see if the canvas or lace is coming back. I'm searching for the lace one and hope to get one soon. I had a chance to get it last time but passed on it . Now I'm regretting as they fits perfectly, no gap at all